Check out the companies making headlines before the bell. Quantum Stock — Quantum stock plunged Monday morning following comments from Mark Zuckerberg, who echoed NVIDIA CEO Jensen Huang, that it will take at least a decade for quantum to become a “useful paradigm.” . Zuckerberg made the comments on Friday’s episode of “The Joe Rogan Experience.” Rigetti Computing’s stock price fell 25%, and D-Wave Quantum fell about 16%. This was followed by IonQ, which fell 8%, and Quantum Computing, which fell 9%. Managed Care Stocks — Managed care stocks rose after the U.S. government proposed Friday to increase 2026 reimbursement rates for Medicare Advantage plans by an average total of 4.3%. Humana stock rose about 6%, while UnitedHealth and CVS Health each rose 3%. Boot Barn — The boot retailer soared about 4% Friday afternoon after Boot Barn said it expected third-quarter earnings per share of about $2.43. That was higher than the $2.05 expected by analysts surveyed by FactSet. The company’s projected sales of $608.2 million also beat the prior consensus of $593.4 million. Pinterest — Shares of the visual sharing platform fell 3% after Jefferies was downgraded to Hold. Jefferies also lowered its fiscal 2025 revenue and EBITDA forecasts, calling the company’s growth “overwhelming.” Crypto Stocks — Stocks tied to the price of Bitcoin fell as the cryptocurrency fell to around $90,000. Coinbase and MicroStrategy each fell 4% in pre-market trading. Bitcoin miner Mara Holdings fell 4% and Core Scientific fell 3%. Lululemon — The apparel company’s stock rose more than 3% after a holiday sales update showed strong demand. Lululemon raised its fourth-quarter sales and earnings per share guidance. The company also said it expects gross margin to expand year-over-year, after previous guidance called for gross margin contraction. Macy’s — Shares fell 2% after Macy’s released a lackluster update on fourth-quarter guidance. Revenue is expected to be slightly below or at the lower end of prior guidance of $7.8 billion to $8.0 billion. Sales for the quarter are expected to be about flat for the prior quarter, compared with the consensus estimate of a 0.4% increase, according to FactSet. Abercrombie & Fitch — The clothing retailer’s stock fell 11% in premarket trading even as Abercrombie raised its fourth-quarter outlook on strong holiday sales expectations. The company now expects fourth-quarter net sales to grow 7% to 8%, compared to prior guidance of 5% to 7% growth. However, expectations for these holidays remain lower than in the same period last year, suggesting a slowdown in growth. Howard Hughes Holdings — after Bill Ackman’s Pershing Square proposed a deal that would offer current holders $85 a share and form a new entity that would merge with the real estate company. The real estate developer’s stock rose 9%. Mega-Cap Tech Stocks — Mega-cap tech stocks fell Monday morning on rising U.S. Treasury yields, adding to losses from last week. Nvidia, Tesla and Palantir Technologies were each down about 3%, while Broadcom and Micron Technology were down about 2%. Moderna — The biotechnology company plunged 20% after cutting its 2025 revenue outlook by about $1 billion, citing potential headwinds in 2025. Moderna currently expects sales to fall between $1.5 billion and $2.5 billion this year, with the majority of that occurring in the second half of the year. year. INTRACELLULAR THERAPY — Shares of Johnson & Johnson soared nearly 34% after the company announced it would buy the neurological disease treatment company for $132 per share. According to this, intracellular therapy is valued at $14.6 billion. Johnson & Johnson’s stock price was flat. —CNBC’s Michelle Fox, Alex Harring, Yun Li, Tanaya Machel, Sarah Ming, Jesse Pound and Pia Xin contributed reporting.